Breadboard Wire (it's recommendable to use 3 wire colors at least) You can control the RF GAIN, make son BIAS to the transistors to listen stronger and clear the Modulated Amplitude Radio Waves, of course this is not a simple Galena radio, but it has a better performance :)ģX 2N2222A TRANSISTORS OR ANY NPN BJT TO92 PIN COMPATIBLE like 2N3904ġX 104 (100 Nano Farad Ceramic Capacitor)ġx 103 (100 Nano Farad Ceramic Capacitor)ġx Knob for the trimmer or you can use a plastic point metal screw driverġx Female Headers (24 pin at least) for Connections & SolderingĢx AA Battery (Alcaline, Carbon, NiMH etc)ġx RF inductor (Hand Made) i explain how to make the inductor in the next steps from this instructableġx 5 pin of male headers (not showed) for easy plugging the audio jack to female headers. to listen many AM radio stations near and not very near from your home, and IT WORKS!!! I tested this circuit and make some improvements on it. And we don't use a all in one radio like the ZN414, MK484, TA7XXXX, one chip receivers in a TO-92 package, because in many places from the world is obsolete and hard to find :( you need to put your hands to work in this AMAZING AM Radio Receiver Circuit, yeah! wanna get that almost free RF Radio waves from the air and to be listened by you ears?ĭefinitely it is not a super regenerative or Heterodyne Receiver, not that kind of difficult stuff for many people who doesn't care about IF frecuency, AGC, RF filters, RF Cans, Decoupling Capacitors, Multiple Trimmers into a large capacitor and thing like that haha.
Hello my friends at Instructables, I hope you are having a good time meanwhile you are reading this, if it is not well.
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